Simulink Control Design™ - MathWorks

Frequencies (rad/sec)

Frequencies for one or more lower singular value bound segments, specified in radians/

sec.

Specify the corresponding magnitudes in Magnitude (dB) on page 16-311.

Settings

Default []

Must be specified as start and end frequencies:

• Positive finite numbers for a single bound with one edge


• Matrix of positive finite numbers for a single bound with multiple edges

For example, type [0.01 0.1;0.1 1] to specify two edges with frequencies [0.01 0.1] and

[0.1 1].

• Cell array of matrices with positive finite numbers for multiple bounds.

Tips

• To assert that magnitude bounds that correspond to the frequencies are satisfied,
  select both Include lower singular value bound in assertion on page 16-308 and
  Enable assertion on page 16-315.


• You can add or modify frequencies from the plot window:
  
  
  • To add new frequencies, right-click the plot, and select Bounds > New Bound.
    Select Lower gain limit in Design requirement type and specify the
    frequencies in the Frequency column. Specify the corresponding magnitudes in
    the Magnitude column.
  
  
  • To modify the frequencies, drag the bound segment. Alternatively, right-click the
    segment, and select Bounds > Edit Bound. Specify the new frequencies in the
    Frequency column.
  
  
  
  

You must click Update Block before simulating the model.

Command-Line Information

Parameter: LowerBoundFrequencies

Type: character vector

16 Blocks — Alphabetical List